The first COBRA invoice after job loss is usually shocking. A health benefit that cost you $200 per month as an employee can become $670 to $2,200 per month under COBRA, because the employer subsidy disappears and you owe the full plan cost plus a 2 percent administrative fee. For most households, ACA Marketplace coverage with premium tax credits is significantly cheaper, often by $300 to $1,500 per month, with the same or comparable network and benefits.
This page walks through the math at five income levels, the 60-day COBRA election clock and how to use it strategically, the loss-of-coverage Special Enrollment Period on the Marketplace, and the HSA contribution question if you want to keep building tax-advantaged savings through the transition.
Premiums below are illustrative monthly amounts for representative household profiles. Actual premiums vary by state, age, tobacco status, and plan choice. Premium tax credits assume 2026 Marketplace rules with the Inflation Reduction Act PTC extensions still in effect. Use Healthcare.gov or your state exchange for actual quotes.
| Household | COBRA | Marketplace Bronze | Marketplace Silver/CSR | Recommendation |
|---|---|---|---|---|
| $35,000 (single, 30) | $670/mo | $0-$80/mo after PTC | $120-$200/mo after PTC | Marketplace Silver-CSR (rich benefits, near-zero cost) |
| $60,000 (single, 45) | $720/mo | $140-$300/mo after PTC | $200-$400/mo after PTC | Marketplace Bronze or Silver depending on health |
| $95,000 (family of 4) | $2,174/mo | $650-$950/mo after PTC | Marketplace, saves $1,000+/mo vs COBRA | |
| $160,000 (couple, ages 55, 53) | $1,850/mo | $1,200-$1,600/mo (PTC reduced/zero) | Marketplace still wins narrowly | |
| $350,000 (high earner, age 50) | $720/mo (self-only) | $650-$900/mo (no PTC) | Roughly tied, COBRA wins on network continuity if relevant |
Under the Consolidated Omnibus Budget Reconciliation Act of 1985 (COBRA), employers with 20 or more employees must offer continuation of group health coverage for 18 to 36 months after a qualifying event (typically up to 18 months after job loss, 36 months for events like divorce, death of employee, or dependent aging out). The catch: the former employee pays the full premium, including the portion the employer used to pay, plus a 2 percent administrative fee.
Per the 2025 KFF Employer Health Benefits Survey, average annual premium for employer family coverage was $25,572 in 2025, with the employer paying roughly 73 percent. The employee contribution averaged about $6,575 per year, or $548 per month. Under COBRA, the same employee owes the full $25,572 + 2 percent admin = $26,083/year, or $2,174/month for family coverage. The shock factor when the employee sees the first COBRA invoice is universal.
For self-only coverage, the 2025 average employer plan cost was $9,325, employee contribution averaged $1,401. COBRA cost: $9,512/year or $793/month. Still expensive relative to most Marketplace alternatives at the same income level.
The COBRA election window is 60 days from your qualifying event (typically job termination or end of coverage). You have an additional 45 days from election to pay the first premium. Coverage is retroactive to the date of loss of coverage if you elect and pay within the window.
The strategic implication: you can wait up to 60 days without coverage, and only elect COBRA if a costly medical event happens during that gap. If you have an emergency room visit on day 45 of your unemployment, elect COBRA on day 46 and pay the back premiums, and the ER visit is covered retroactively. If nothing happens for 60 days, decline COBRA entirely.
This is a real-money strategy. The risk: you pay nothing for 60 days but accumulate liability for back premiums if a medical event occurs. The reward: if nothing happens, you save 2 months of COBRA premium and switch to a cheaper Marketplace plan.
Coordinate with the Marketplace 60-day Special Enrollment Period, which also starts at loss of coverage. Strategy: wait the COBRA 60 days, then enrol in Marketplace if no medical event occurred (you have to enrol by day 60 of the Marketplace SEP, so timing must be tight). Some households split: enrol Marketplace on day 50 with effective date day 1 of the next month, leaving 10 to 20 days of gap coverage handled by the COBRA-back-payment fallback.
COBRA wins over Marketplace in a few specific scenarios. First, very high income households (above 400 percent of federal poverty level even after IRA extensions) where Marketplace PTC is small or zero, and where COBRA network access is materially better than what Marketplace plans offer. The math is usually close, but continuity of care can tip it.
Second, households in the middle of complex treatment (active cancer treatment, recent surgery, ongoing specialist care) where switching plans would force network disruption. COBRA preserves the exact provider relationships and treatment plans you have. This is the strongest argument for COBRA, often worth $400 to $1,000 per month of premium overhead for the duration of active treatment.
Third, very short gaps (under 3 months) between jobs where you have already met a meaningful portion of the deductible and OOP max on the existing plan. Switching to a new plan resets the deductible. If you have already paid $5,000 toward a $6,000 OOP max in October, COBRA for November and December at $700/month ($1,400) is cheaper than restarting a deductible at a new Marketplace plan or with a new employer.
If your former employer's plan was an HDHP and you elect COBRA continuation of that HDHP, you remain HSA-eligible and can continue contributing. Without payroll deduction, you make contributions from post-tax money and deduct on Form 8889 of your 1040 to claim the tax benefit. You do not get the FICA savings without payroll deduction, only the federal income tax savings.
If you switch to a Marketplace HDHP (any 2026 Bronze or Catastrophic plan qualifies), you remain HSA-eligible and can continue contributing. Same post-tax mechanics with Form 8889 deduction.
If you switch to a non-HDHP Marketplace plan (Silver, Gold, or Platinum), you become HSA-ineligible the month the new coverage begins. Your existing HSA balance remains yours and can be spent on qualified medical expenses, but no new contributions allowed. For high-deductible-comfortable savers, this is a meaningful argument for choosing a Bronze HDHP on the Marketplace, which preserves HSA eligibility through the gap.
COBRA premiums are the full cost of your employer's health plan plus a 2 percent administrative fee. Per the 2025 KFF Employer Health Benefits Survey, average employer family coverage is $25,572/year total, with the employer typically paying around 73 percent. Under COBRA, you pay the full $25,572 + 2 percent = $26,084/year, which is $2,174/month for family coverage. Self-only COBRA averages roughly $670/month. Most people seeing their first COBRA invoice are shocked at the number.
Almost always, if you qualify for Marketplace premium tax credits. A household with $80,000 income and a 45-year-old shopper might pay $300-$600/month for a Bronze or Silver Marketplace plan after PTC, compared to $670-$900/month COBRA. The gap widens at lower incomes where Marketplace subsidies are larger. COBRA wins only at very high incomes (above 400% FPL with no PTC) and only marginally even then.
COBRA: 60 days from your qualifying event (typically job termination date or end of coverage date, whichever is later) to elect. After electing, you have an additional 45 days to make your first premium payment. Coverage is retroactive to the date of loss of coverage. Marketplace: Loss of employer coverage triggers a 60-day Special Enrollment Period (SEP) starting from the date coverage ends. You can enroll within those 60 days with coverage starting the first day of the month after enrollment (or first of the following month, depending on enrollment timing).
Yes, this is a legitimate strategy. You have 60 days to elect COBRA, and another 45 days after electing to pay the first premium. Coverage is retroactive to your loss-of-coverage date. So you can decline COBRA on day 1, wait 60 days, and only elect/pay if a costly medical event has happened. If nothing happens, decline COBRA entirely and use the Marketplace SEP. Watch the Marketplace SEP 60-day clock, which starts the same day, so coordinate the two deadlines carefully.
Yes, on either, if you maintain HDHP-qualifying coverage. COBRA continuation of an HDHP keeps you HSA-eligible, and you can continue contributing up to the annual limits. Marketplace HDHP coverage (any 2026 Bronze or Catastrophic plan) also keeps you HSA-eligible. The HSA contribution itself comes from your post-tax money (since no employer payroll to deduct from), but you can deduct contributions on Form 8889 of your 1040 to reduce federal income tax. Keep contributing through job transitions where possible.
Not insurance or financial advice. Premium estimates derived from 2025 KFF Employer Health Benefits Survey and 2026 Healthcare.gov rate filings. Premium tax credit estimates use IRA-extended PTC rules in effect for plan year 2026. Always run your specific numbers through Healthcare.gov or a state exchange, and consult a Marketplace navigator for low-income optimisation.